I think I have just worked it out by using the “!important” attribute on the CSS. Sorry and thanks for your help!
What I needed to do was just change the colour of the bullet point link, so I added in the class and then on the custom style of the theme I added on the CSS. When I looked at the feed that I added into a post, the CSS formatting was being overriden by “element style”, but I could see in the inspector that it was there, but cross through.
I’ve tried the above and it doesn’t seem to work – it gets overriden? Can anyone help please?